Ron and his team at Marquise are excellent. We initially contacted them to help us remove an existing tub enclosure and to install a new bathtub. They were very quick to respond and set up an…

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M.L.

M.L.08/19/2013

Recently used MP for several jobs for a house we recently purchased. MP was honest and priced very reasonably. And they didn't recommend items that didn't to be done, unlike another plumber we had in…

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D.D.

D.D.01/08/2018

Marquise Plumbing was the best! The plumber who worked on our place was very knowledgeable and professional, his name was Jay. While working on our plumbing issue, Jay noticed a serious problem and…

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A.C.

A.C.05/30/2020

This was our second time using Marquise Plumbing. First time was our basement almost flooded because our main sump pump stopped working, the back up couldn’t keep up pumping out the water. His…

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Backflow Testing in Naperville, Illinois

Marquise Plumbing and Backflow provides professional backflow prevention testing services in Naperville, Illinois. Annual backflow testing is required by most water utilities to protect public water supplies from contamination through cross-connection control compliance. Their services include rpz testing, backflow testing, serving both residential and commercial properties throughout the Naperville area.

Whether you need a routine RPZ valve inspection, backflow prevention device testing, or a certified tester to file compliance reports with your local water authority,Marquise Plumbing and Backflow can help. Homeowners, HOAs, and property managers can request a free quote using the form on this page.